Home / 628,738.27-867,658.92-342,260.53

Finding the Fourth Proportional to 628,738.27, 867,658.92 and 342,260.53

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Solution

The fourth proportional to 628,738.27, 867,658.92 and 342,260.53 is: 472,319.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,738.27 : 867,658.92 = 342,260.53 : x
  2. Step 2: Convert to fraction form
    628,738.27/867,658.92 = 342,260.53/x
  3. Step 3: Cross multiply
    628,738.27x = 867,658.92 × 342,260.53
  4. Step 4: Simplify right side
    628,738.27x = 296,965,401,818.43
  5. Step 5: Solve for x
    x = 296,965,401,818.43/628,738.27
  6. Step 6: Final answer
    x = 472,319.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.